<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <!-- import CSS -->
    <link rel="stylesheet" href="https://cdn.staticfile.org/element-ui/2.15.9/theme-chalk/index.css">
</head>
<body>
<div id="app">
    <div>
        <h1>{{city}}</h1>
        <el-radio-group v-model="city">
            <el-radio-button label="重庆"></el-radio-button>
            <el-radio-button label="成都"></el-radio-button>
            <el-radio-button label="西安"></el-radio-button>
            <el-radio-button label="大理"></el-radio-button>
        </el-radio-group>
    </div>
</div>
</body>
<!-- import Vue before Element -->
<script src="https://cdn.staticfile.org/vue/2.6.14/vue.min.js"></script>
<!-- import JavaScript -->
<script src="https://cdn.staticfile.org/element-ui/2.15.9/index.min.js"></script>
<script>
    let v = new Vue({
        el: '#app',
        data: function() {
            return {
                city:""
            }
        },
        methods: {

        },
    })
</script>
</html>